That's not only true -- that's obvious.
Compact car sales by make/model for 2015, which was the last year available for full-year figures (figures rounded to the nearest 500 units) ...
Toyota Corolla -- 363,500
Honda Civic -- 335,500
Hyundai Elantra -- 241,500
Chevrolet Cruze -- 226,500
Nissan Sentra -- 203,500
Ford Focus -- 202,500
Volkswagen Jetta -- 131,000
Mazda 3 -- 108,000
Subaru Impreza -- 100,500
Dodge Dart -- 87,500
Kia Forte -- 79,000
Volkswagen Golf -- 65,500
Buick Verano -- 32,000
Acura ILX -- 18,500
Mitsubishi Lancer -- 17,500
As I said in my previous post, these figures hurt Ford because the company sells a lot of light trucks and SUVs -- and the stupid EPA regulations require them to achieve average fuel efficiency standards across all of their models. For every four F-150 models they sell with an average fuel efficiency of 17 mpg, they have to sell five Focus models with an average fuel efficiency of 33 mpg in order to reach a 25-mpg average (for example).
They sold over 780,000 F-150s in 2015, so you can see how this math doesn't work for them.